asterisk users - Feb 2004 - Flash to PBX with X100P - how to?

Hi everyone,

I have X100P connected to internal line of my Tenovis PBX. 
I try to use * as simple DISA box.
When I have a call on this line, after user selects extension,
I want * to flash a line (to put on hold on Tenovis) and then 
call selected extension.

Problem is that I cannot make Flash to work properly.

I have:

exten => 60,1,Flash
exten => 60,2,Wait,2
.
    log is:

    -- Executing Flash("Zap/1-1", "") in new stack
    -- Flashed channel Zap/1-1
    -- Executing Wait("Zap/1-1", "5") in new stack

After Flash my connection is lost.
I've already tried with different flash duration option in Tenovis,
but always is the same.
I've also tried to play with 'flash' option in zapata.conf.

What do I make wrong?

Maciej Kietlinski